Table 271 Proposed Number of Hox Genes in Various Extant and and Extinct

question 23

Multiple Choice

Table 27.1. Proposed Number of Hox Genes in Various Extant and Extinct Animals
-All things being equal, which of these is the most parsimonious explanation for the change in the number of Hox genes from the last common ancestor of insects and vertebrates to ancestral vertebrates, as shown in Table 27.1?

• A) The occurrence of seven independent duplications of individual Hox genes.
• B) The occurrence of two distinct duplications of the entire seven-gene cluster, followed by the loss of one cluster.
• C) The occurrence of a single duplication of the entire seven-gene cluster.

Grasp the purpose and process of posting transactions from the journal to the ledger.

Learn the guidelines for choosing account names for the chart of accounts.

Recognize the classification of accounts such as assets, liabilities, revenues, and expenses.

Understand how management can utilize ledger accounts to make informed decisions.

---

Definitions:

Afterimages

Visual phenomena where an image continues to appear in one's vision after the exposure to the original image has ceased.

Colorblindness

A visual impairment in which an individual has difficulty distinguishing between certain colors, usually between red and green, due to absent or defective color-sensitive cells in the eyes.

Perceptual Constancy

The brain's ability to recognize objects as constant and unchanging despite changes in sensory input such as lighting, distance, or angle.

Linear Perspective

A depth cue in visual perception where parallel lines appear to converge in the distance, helping to create an illusion of depth in a two-dimensional image.